US4030430A - Apparatus for sewing slide fasteners to elastic carriers - Google Patents

Apparatus for sewing slide fasteners to elastic carriers Download PDF

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Publication number
US4030430A
US4030430A US05/550,489 US55048975A US4030430A US 4030430 A US4030430 A US 4030430A US 55048975 A US55048975 A US 55048975A US 4030430 A US4030430 A US 4030430A
Authority
US
United States
Prior art keywords
slide
clamping
carrier
slit
slide fastener
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/550,489
Other languages
English (en)
Inventor
Hansjurgen Pickert
Hans Dieter Sesselmann
Leonardes August Timmers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
William Prym Werke GmbH and Co KG
Original Assignee
William Prym Werke GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by William Prym Werke GmbH and Co KG filed Critical William Prym Werke GmbH and Co KG
Application granted granted Critical
Publication of US4030430A publication Critical patent/US4030430A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/10—Edge guides
    • D05B35/105—Guiding while stretching the workpiece, e.g. by means of weighted clips
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B35/00—Work-feeding or -handling elements not otherwise provided for
    • D05B35/06—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding
    • D05B35/064—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding for attaching slide fasteners

Definitions

  • the present invention relates to an apparatus for simultaneously sewing two coupled stringers of a slide fastener onto portions of a carrier to opposite sides of an elongated slit therein, and in which the carrier is elastic in the direction of the slit.
  • sewing operations it is often necessary to sew two coupled stringers of a slide fastener onto portions of a highly elastic material to opposite sides of an elongated slit therein in which the length of the slide fastener has to be determined in such a manner that this length corresponds with the length of the slit in tensioned condition of the carrier material. This problem arises for instance in series manufacturing of slip covers for upholstered furniture or the like.
  • slip covers elastically expandable material and to manufacture the slip covers to smaller dimensions than the upholstered parts they have to cover, so that after inserting the upholstered part in the manufactured slip cover, the latter will adhere perfectly flat and without folds to the upholstered part.
  • auxiliary devices for sewing machines are already known by means of which an elastically stretchable textile material may be sewn to substantially nonstretchable textile material in such a manner to make a uniform arrangement of the stretchable material on the unstretchable material possible.
  • Such an auxiliary device is for instance shown in the U.S. Pat. No. 3,542,262. With such a device it is however not possible to produce seams simultaneously to opposite sides of an elongated slit in the stretchable material.
  • the known auxiliary device requires a cumbersome adjustment of the clamping means thereon so that this device is unsuitable for efficient manufacturing such articles in large series.
  • the apparatus according to the present invention for simultanteously sewing two coupled stringers of a slide fastener onto portions of a carrier to opposite sides of an elongated slit therein, in which the carrier is elastic in direction of the slit mainly comprises a two-needle sewing machine having a needle plate, a slide, means on the slide for releasably holding the coupled stringers of a slide fastener in the region of one end of the latter and the carrier in the region of one end of the slit therein, elongated guide means having one end fastened to the sewing machine in the region of the needle plate thereof and at an opposite end for guiding the slide toward and away from the needle plate, and means connected to the slide for biasing the same with a substantially constant force toward the opposite end of the guide means in a direction opposite to the advance of the slide fastener and carrier during the sewing operation.
  • the aforementioned biasing means preferably comprise an elongated flexible member connected at one end thereof to the slide and a weight connected to the other end of the elongated flexible member which is preferably guided over a roller on the opposite end of the elongated guide member.
  • the aforementioned holding means include clamping means for clamping the aforementioned end of the slide fastener to the slide and such a clamping means are provided with an actuating lever so that the operator when he nears the end of the sewing operation may in very simple manner release the connection between the slide and the slide fastener end, in order to finish the sewing operation.
  • FIG. 1 is a schematic perspective view of the apparatus according to the present invention.
  • FIG. 2 is a partial perspective view of the apparatus shown in FIG. 1 and drawn to an enlarged scale;
  • FIG. 3 is a partially sectioned side view of the part of the apparatus shown in FIG. 2, drawn to an enlarged scale and through 180° reversed with respect to FIG. 2.
  • the apparatus comprises a two-needle sewing machine 1 having a needle plate 2 mounted on the upper end of a column 2' of the sewing machine.
  • An elongated guide means shown as an elongated guide rail 6, is connected at one end to the column 2' in the region of the needle plate 2 thereon and intermediate its ends to the table of the sewing machine.
  • the elongated guide rail 6 extends substantially in a direction coinciding with the advancing direction produced by the sewing machine in known manner on the material during the sewing operation.
  • a slide 5 is mounted on the guide rail 6 movable in longitudinal direction thereof.
  • An elongated flexible member for instance a rope 8 is connected at one end to the slide 5, whereas the other end of the rope 8 carries a weight 7.
  • the rope 8 is guided intermediate its ends over a roller 6' connected to the free end of the guide rail 6.
  • the rope 8 and the weight 7 thereon therefore constitute biasing means for biasing the slide 5 toward the free or left end, as viewed in FIG. 1, of the guide rail 6.
  • the guide rail 6 carries also at its left end, as viewed in FIG. 1, a springy shock absorber 10 of a construction more clearly illustrated in FIG. 2.
  • the slide 5 carries clamping means 3 for clamping the ends of the two stringers of a slide fastener S distant from the sewing machine 1.
  • the clamping means 3 comprise a clamping plate 10 connected by a hinge 18 to the slide 5 so as to be pivotable about the axis 0 of the hinge.
  • the plate 10 carries distant from the hinge 18 an upright support member 11 to the upper end of which an elongated connecting member 21 of U-shaped cross section is hinged at 20.
  • a link 12 pivotally connected at 12' to the member 21 and at 12" to a member 22 projecting in substantially horizontal direction from the right end of the slide 5, as viewed in FIG. 3, toward the left and which is arranged rearwardly of the link 12.
  • the member 21 carries also in its interior a lever 9 pivotally connected thereto at 9' and projecting through an opening 21' in the member 21 outwardly of the latter.
  • the lever 9 has a lower curved end 13 engaging the upper face of the link 12.
  • a coil tension spring 23 is connected at opposite ends to the member 11 and to the slide 5, which spring extends in the clamping position shown in FIG. 3 substantially parallel to the link 12.
  • a plate 17 is located opposite the plate 10 so that in the clamping position, as shown in FIG. 3, the ends of the stringer of the slide fastener S may be clamped between the bottom face of the plate 10 and the top face of the plate 17.
  • the side walls of the connecting member 21 of U-shaped cross section have curved rear end faces 21" abutting in the clamping position shown in FIG. 3 against a curved cam face 22' of the member 22.
  • the slide 5 carries also a holding member 4 having a long upwardly projecting arm 15 and a short lower arm 16 extending transverse to the long arm 15 and being pivoted at 14 to the plate 10.
  • the lower arm 16 will engage with the left-end of its bottom face, as viewed in FIG. 3, on the row of elements of the clamped slide fastener S so as to hold the long arm 15 in substantially upright position as shown, and the arm 15 will extend with its bottom end also on the row of elements of the clamped slide fastener.
  • the tubular slip cover is prepared before the sewing operation in such a manner that not only the side to which the slide fastener has to be sewn but also the opposite side of the slip cover is to be open, whereby however the side to be provided with the slide fastener is sewn at both of its ends for a short distance in order to determine the width of the seam.
  • the thus prepared slip cover is now placed onto the sewing machine in such a manner that the slip cover is pulled from one end of the slit therein toward the other end beneath the presser foot (not shown) of the sewing machine. Thereby the column 2' of the sewing machine will be placed into the interior of the tubular slip cover.
  • the pivot 14 moves along a circle having its center at 0 so that the arm 15 of the holding means 4 will tilt under the influence of the tensioned slip cover in the direction of the arrow A, facilitating thereby removal of the slip cover from the arm 15.
  • the slide 5 After release of the slide fastener and the slip cover, the slide 5 will move under the influence of the weight 7 connected thereto toward the left end of the guide rail 6 as viewed in FIG. 1 and abut against the bumper 10 which brakes the impact of the slide.
  • the slip cover is turned around so that the inner side of the slide fastener will be located outwardly of the slip cover so that a slider for the slide fastener may be pulled onto the two stringers of the slide fastener in a manner known in the art.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US05/550,489 1974-02-16 1975-02-18 Apparatus for sewing slide fasteners to elastic carriers Expired - Lifetime US4030430A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742407558 DE2407558A1 (de) 1974-02-16 1974-02-16 Vorrichtung zum einnaehen von reissverschluessen
DT2407558 1974-02-16

Publications (1)

Publication Number Publication Date
US4030430A true US4030430A (en) 1977-06-21

Family

ID=5907645

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/550,489 Expired - Lifetime US4030430A (en) 1974-02-16 1975-02-18 Apparatus for sewing slide fasteners to elastic carriers

Country Status (7)

Country Link
US (1) US4030430A (xx)
BE (1) BE825149A (xx)
DE (1) DE2407558A1 (xx)
FR (1) FR2261365A1 (xx)
GB (1) GB1461215A (xx)
NL (1) NL7500840A (xx)
SE (1) SE404040B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102280A (en) * 1976-02-23 1978-07-25 Durkoppwerke Gmbh Feed device for flexible workpieces, especially for a sewing machine
US4116142A (en) * 1976-10-29 1978-09-26 Rockwell-Rimoldi S.P.A. Workpiece tensioning device for a sewing unit
CN102808293A (zh) * 2012-08-13 2012-12-05 温岭市纵横流水线制造有限公司 一种方巾拷边机
US11850566B2 (en) 2020-11-24 2023-12-26 Aircela Inc. Synthetic fuel production system and related techniques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110409072B (zh) * 2019-08-26 2024-08-02 宁波申洲针织有限公司 一种自动贴四周贴袋模板

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444335A (en) * 1945-01-30 1948-06-29 American Aggregates Corp Tarpaulin sewing machine
US3542262A (en) * 1968-10-21 1970-11-24 Fred H Ewert Elastic holder and sewing appliance
GB1293461A (en) * 1969-01-10 1972-10-18 Opti Holding Ag Method of and device for securing sliding clasp fasteners into lined fabrics
US3713408A (en) * 1968-07-26 1973-01-30 Detexomat Ltd Seaming textile articles
US3750604A (en) * 1971-01-11 1973-08-07 Bobbie Brooks Inc Sewing method
US3903818A (en) * 1973-05-22 1975-09-09 Rimoldi C Spa Virginio Apparatus for the making of straight seams, for example false creases in trousers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444335A (en) * 1945-01-30 1948-06-29 American Aggregates Corp Tarpaulin sewing machine
US3713408A (en) * 1968-07-26 1973-01-30 Detexomat Ltd Seaming textile articles
US3542262A (en) * 1968-10-21 1970-11-24 Fred H Ewert Elastic holder and sewing appliance
GB1293461A (en) * 1969-01-10 1972-10-18 Opti Holding Ag Method of and device for securing sliding clasp fasteners into lined fabrics
US3750604A (en) * 1971-01-11 1973-08-07 Bobbie Brooks Inc Sewing method
US3903818A (en) * 1973-05-22 1975-09-09 Rimoldi C Spa Virginio Apparatus for the making of straight seams, for example false creases in trousers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102280A (en) * 1976-02-23 1978-07-25 Durkoppwerke Gmbh Feed device for flexible workpieces, especially for a sewing machine
US4116142A (en) * 1976-10-29 1978-09-26 Rockwell-Rimoldi S.P.A. Workpiece tensioning device for a sewing unit
CN102808293A (zh) * 2012-08-13 2012-12-05 温岭市纵横流水线制造有限公司 一种方巾拷边机
US11850566B2 (en) 2020-11-24 2023-12-26 Aircela Inc. Synthetic fuel production system and related techniques

Also Published As

Publication number Publication date
NL7500840A (nl) 1975-08-19
SE404040B (sv) 1978-09-18
DE2407558A1 (de) 1975-08-21
GB1461215A (en) 1977-01-13
BE825149A (fr) 1975-05-29
FR2261365A1 (xx) 1975-09-12

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